Subsoil-plow.



'1. B. HARRIS.

SUBSOIL PLOW. APPLICATION FILED JAN. 2, 19oe.

WITNESSES: /VVE/VTOR.

' ATTOR NE VS PA'TENTBD MAR. 27, 1906.

UNITED STATES PATENT OFFICE.

JOSEPH B. HARRIS, OF BRANSON, MISSOURI, ASSIGNOR OF ONE-HALF TO JAMES B.HICKS, OF BRANSON, MISSOURI.

SUBSOlL-PLOW.

Specification of Letters Patent.

katented March 27, 1906.

To all whom it may concern.-

Be it known that I, JOSEPH B. HARRIS, a citizen of the United States,residing at Branson, in the county of Taney and State of Missouri, haveinvented a new and useful Subsoil-Plow, of which the following is aspecification.

This invention relates to improvements in subsoil attachments to plows,and has for its object to produce a simply-constructed device of thischaracter which may be readily adapted to the various construction ofturning-plows without structural changes in the plows or in theattachment.

With these and other objects in view, which will appear as the nature ofthe invention is better understood, the invention consists in certainnovel features of construction, as hereinafter fully described andclaimed.

In the accompanying drawings, forming a part of this specification, andin which corresponding parts are denoted by like designating characters,is illustrated the preferred form of the embodiment of the inventioncapable of carrying the same into practical operation, it beingunderstood that various chan es in the form, proportion, and minor detais of construction may be resorted to without departing from theprinciple or sacrificing any of the advantages of this invention withinthe scope of the appended claims.

In the drawings, Figure 1 is a side elevation of the improved devicewith the moldboard in section and one of the handles removed. Fig. 2 isa plan view of a plow with the improvement attached. Fig. 3 is anenlarged perspective detail illustrating the construction of thesubsoil-standard guides. Fig. 4 is an enlarged perspective detail of themeans for adjusting the subsoil-plow standard.

The improved attachment comprises in general a subsoil-plow moldboardattached to a vertical standard, a radius-bar for connecting thesubsoil-plow standard to the turningplow, spaced guide members embracingthe subsoil-plow standard and having means for attachment to theturning-plow and means for adjusting the subsoil-plow standard and itsmoldboard vertically to control the depth to which the subsoil-plow willoperate and also to elevate the same above the ground when not in use.

The moldboard of the turning-plow is represented at 10, the landside at11, and the beam at 12, the latter bolted or riveted at its foot 13 tothe landside, as at 14. The lefthand handle 15 is secured at the lowerend to the plow by one of the rivets or bolts 14, while the right handle16 is riveted or bolted at 17 to the moldboard 10, the two handlesconnected to each other by transverse staybolts 18, spaced apart, asshown. Braces 19 20 are bolted at one end at 21 to the beam and divergeand extend rearwardly to one of the transverse stay-rods 18, to whichthey are secured at their rear ends.

The subsoil-moldboard is represented at 22 of the usual or any desiredform and connected to a vertical standard 23, the latter having aplurality of spaced apertures 24. The standard 23 passes through spacedguards 25 26, formed of U-shaped rods and coupled to two of thetransverse stay members 18. Pivoted at the ends at 37 38, respectively,to the beam 12 and the subsoil-plow standard 23, is a radius-bar 39.Pivoted to the bolt 21 by which the braces 19 20 are connected to thebeam, is a lever 27, extending rearwardly and movably connected by abolt 28 to one of the apertures 24 of the standard 23. Connected at 29to the landside 11 is a supporting-standard 30, extending upwardly andprovided with a plurality of spaced apertures 31. The lever 27 isprovided with a keeper 36, through which the supporting standard or bar30 passes, and pivoted at 32 to the lever is a lock-bar 33, leaving ahandle 34 at one end adjacent to the handle end 35 of the lever 27 andwith the other end bent laterally and passing through an aperture in thekeeper 36 and into one of the apertures 31 in the bar 30. By this meansthe operator can very quickly adjust the subsoil-plow to operate at anyrequired depth or to elevatethe same above the lower line of thelandside 11 and moldboard 10 when not required.

The radius-bar 39 holds the standard 23 and its moldboard 22 firmly inposition and effectually resists all tendency to rearward movement. Thepivot-loolts 21 28 and lever 27 effectually prevent any tendency toforward movement of the upper end of the standard, while the guardmembers 25 26 hold the standard from lateral movement. The spacedapertures 24 provide for the vertical adjustment of the subsoil-plowbeam, so that the depth of cut may be increased or decreased, asrequired.

Having thus described the inventiomwhat is claimed is 1. The combinationwith a plow including a moldboard, landside, beam and diverging handlesconnected by spaced stay members, of a subsoil moldboard having avertical standard, guard members connected to said stay members andembracing the standard, a radius-bar movably connecting said standard tothe plow, and means connected to the plow for adjusting the standard andits moldboard and maintaining the same in adjusted position.

2. The combination with a plow including a moldboard, landside, beam anddiverging handles connected by spaced stay members, of asubsoil-moldboard having a vertical standard, guard members connected tosaid stay members and embracing the standard ,Ea

radius-bar movably connecting said standard 20 JOSEPH B. HARRIS.Witnesses:

M. W. JoNEs, P. Runs.

